Read Cumthrot text version

101057 rev. C

VERNIER THROTTLE SYSTEM for

Caterpillar Engines

Class1

607 NW 27 Ave. Ocala, FL 34475 Ph: (352) 629-5020 Fax: (352) 629-2902

DOC 101057C_c:\manuals\throttles\cats\catthrot.p65

1

Overview

Throttle Interface Control Module

System Overview The Class1 Vernier Throttle Interface is designed to allow industry standard vernier style controls (such as the Felsted Electronic Vernier II Control) and other potentiometer controls to be used with electronically controlled engines. This unit will work with electronically controlled Caterpillar Engines (C10, C12, 3116, 3126, 3176, 3406, 3116B and 3126B) using a Pulse Width Modulated (PWM) Signal. The interface converts a linear voltage input (potentiometer) into a PWM signal to control the engine. True variable speed control is attained and the unit will maintain a selected engine RPM irrespective of the engine load within it's horsepower and torque capabilities. The interface can be used to govern engine speed for various applications including PTO driven generators and pumps and has an internal idle validation circuit that can be overriddenusing an input that allows for a fast idle activation. Included in the package The throttle control is available alone or as a package shipped with the following components.

interface module vernier control user manual

Operation Variable Throttle Control When the interface has power provided by the interlock circuit, variable engine control is available to the operator using the vernier control. If the vernier control is open more than 10% when power is applied to the interface, the interface will maintain the engine at idle RPM until the throttle is closed and then re-opened. This feature prevents sudden unexpected increases in engine speed when the unit is initially activated. High Idle Control An input (C4) is available to bring the engine speed to a pre-determined engine RPM (High Idle) from a remotely mounted switch or load management device. When the interface is powered up with this input active, the idle validation routine is bypassed and the interface will increase the engine speed to the preset RPM. This speed can be set by an external potentiometer or resistor network. Installation Control Module The interface module requires minimal space (3.63" x 4.75" x1.00"). The module is watertight and may be mounted in any location that is not subject to extreme temperature or vibration. Wiring The interface package comes with cables and leads to make the following connections: Power and Ground Engine Control Extension Cable High Idle connector with leads

Refer to the diagrams in the manual for specific wiring requirements. Refer to the engine manufacturer's Electronic Application & Installation Guides for detailed information on engine electrical interfacing.

DOC 101058C_c:\manuals\throttles\cat\catthrot.p65

2

Interlocks

Class1 provides a variety of engine controls that are used in a broad range of applications, therefore it is impossible for Class1 to determine the suitability of a particular control for any specific application. The flexibility of our products allows them to be used in a limitless number of custom applications. Class1 can advise you of the features that are available on a given product so that you can determine what product will meet your needs. We believe that the Original Equipment Manufacturer's (OEM) engineering departments should be qualified experts in their product field and are the authorities on product application and safety. Since our products are typically used in safety critical applications, the OEM must undertake appropriate testing to prevent injury to the end user.

WARNING

!

IT IS THE PURCHASER'S RESPONSIBILITY TO DETERMINE THE SUITABILITY OF ANY PRODUCT FOR AN INTENDED APPLICATION, AND TO INSURE THAT IT IS INSTALLED AND GUARDED IN ACCORDANCE WITH ALL APPLICABLE FEDERAL, STATE, LOCAL AND NFPA SAFETY AND HEALTH REGULATIONS, CODES AND STANDARDS.

NOTE: The interlock schemes shown in this manual are examples only and may not be suitable for specific applications. The throttle interface is active whenever power is applied. Special Programming The ECM must be programmed for remote throttle operation and there are several considerations including vehicle speed and max RPM that need to be configured.

DOC 101057C_c:\manuals\throttles\cats\catthrot.p65

3

Connectors

Throttle Interface for Caterpillar Engines

C1

C2

C3

C4

Connector Information C1 Position A B C2 Position A B C C3 Position A C4 Position A

Connector 12015792 Terminal 12089188 Seal 12015899

Wire Color Red Black

Connector 12015793

Description Throttle Interlock Ground

Terminal 12089188 Seal 12015899

Wire Color White Blue Orange

Connector 12010973

Description Throttle ground Throttle Signal Throttle Source

Terminal 12089040 Seal 12015899

Wire Color Yellow

Connector 12015791

Description PWM Signal

Terminal 12089188 Seal 12015899

Wire Color Green

Description Fast Idle*

* This input bypasses idle validation and allows the interface to command engine speed as soon as power is applied.

DOC 101058C_c:\manuals\throttles\cat\catthrot.p65

4

Caterpillar C10, C12, 3176 & 3406 ECM

4 5 6 PTO Engaged Relay 87a 30 12 18 Caterpillar Interface 85 86 22 29 Sensor Common Ground 8 PTO On/Off Caterpillar 3176/3406

Vehicle Harness Connector

1

2

3

7

13

Class 1

87

19 28 34

23

Wiring 3176

29

35 C1-B Throtle Position C3

36

37

38 39 40

C1-A 12 VDC 31 Multifunction Input #3 PWM

CAT Lower Connector (J1/P1)

OEM Interlocks PTO PTO Lamp 21 Output #1 PTO On Lamp

DOC 101057C_c:\manuals\throttles\cats\catthrot.p65

Available Default 12 VDC Remote Throttle 600-2120 Idle-PTO TEL TEL, Idle,PTO TEL Normal, Continuous 200 lb-ft to Rated 1 to 127 MPH Off 2120 0 RPM TEL Normal 2000 lb-ft 1 MPH

Programming Considerations

Parameter

PTO PTO Top Engine Limit PTO RPM set speed PTO Cab Throttle RPM PTO activates cooling fan Torque Limit Max PTO vehicle speed limit

Caterpillar 3176/3406

5

manuals\throttles\cat_3176.ai..021497

HI-Idle

Wiring the Class1 Vernier Throttle with high idle option only

HIGH IDLE POT C2-A Throttle Ground C2-B Throttle Signal C2-C Throttle Source Class 1 CAT Interface

OEM Interlocks FAST IDLE Fast Idle Switch 12 VDC C1-A 12 VDC C4

manuals\throttles\cat\cathigh.ai..110298

DOC 101058C_c:\manuals\throttles\cat\catthrot.p65

6

Wiring the Class1 Vernier Throttle with a remote high idle option

Relay 1 HIGH IDLE POT VERNIER THROTTLE

3176/3406

87a 87

30

C2-B Throttle Signal Class 1 CAT Interface

PTO OEM Interlocks FAST IDLE Fast Idle Switch 85 12 VDC 86 30

85

86

DOC 101057C_c:\manuals\throttles\cats\catthrot.p65

Relay 3 87a 87 87a 87

Relay 2 30 C1-A 12 VDC

85

86

C4 VERNIER THROTTLE 5 VDC C2-C HOOKED IN PARALLEL TO HIGH IDLE POT. HIGH IDLE POT. FROM C2-C

SIGNAL

C2-B

CONNECT TO VERNIER THROTTLE INPUT AT RELAY 1 HOOKED IN PARALLEL TO HIGH IDLE POT.

CONNECT TO HIGH IDLE POT INPUT AT RELAY 1 FROM C2-A

GROUND C2-A

RELAY 3 DISABLES HIGH IDLE WHEN OK TO PUMP/PTO ENGAGED SIGNAL IS PRESENT RELAY 2 SELECTS THE SOURCE OF THE INTERLOCK (HIGH IDLE OR PTO) RELAY ONE SELECTS WHICH THROTTLE SIGNAL (HIGH IDLE OR VERNIER) IS DELIVERED TO THE INTERFACE MODULE

manuals\throttles\cat\catvthi.ai..110298

7

8

Caterpillar 3126 ECM

VERNIER CONTROL (10K) Remote Throttle Switch (PTO Engaged) K999 Green C2-A Sensor Common (Ground) C1-B C2-C C993 Brown 29 Sensor Common Ground 8 Caterpillar ECM 3126

PTO On/Off

HIGH IDLE POT (10K)

DOC 101058C_c:\manuals\throttles\cat\catthrot.p65

C4 Caterpillar Interface C2-B Throttle Signal C1-A 12 VDC Throtle Position C3

CAB Throttle Sensor Common +8 VDC Throttle Position Relay 87a 87 30 C986 Brown 37 TPS Input C985 Blue 35 8 VDC

85

86

OEM Interlocks PTO K998 Blue PTO Lamp FAST IDLE Fast Idle Switch 12 VDC Caterpillar ECM 3126 21 Output #1 PTO On Lamp

3126

Wiring the Class1 Vernier Throttle Interface with a fast idle option

Manuals\Throttles\catvthi.ai..120996

Caterpillar 3126B HEUI ECM Throttle Interface Module

PTO Engaged Relay 30 56 87 2 85 86 14 24 32 1 87a PTO On/Off Ground Caterpillar 3126B HEUI

Vehaicle Harness Connector ECM Side 8 7 6 5 4 3

13 12 11 10 9

23 Sensor Common (Ground)

31

3

39

47 40 Caterpillar Interface 48

Class 1

Input Sensor Common #2 Ground

3126B HEUI

57

70 69 68 67 66 65 64 63 62 61 60 59 58 Throtle Position C1-A C3 12 VDC C1-B

68

CAT J1/P1 Connector ECM RIGHT SIDE

INPUT #8 RAPS PWM

OEM Interlocks PTO 30 PTO Lamp Output #1 PTO On Lamp Ground

DOC 101057C_c:\manuals\throttles\cats\catthrot.p65

Available Defaults 12 VDC Remote Throttle 600-2120 Idle-PTO TEL TEL, Idle,PTO TEL Normal, Continuous 200 lb-ft to Rated 1 to 15 MPH Off 2120 0 RPM TEL Normal 2000 lb-ft 1 MPH

Programming Considerations

Parameter

PTO PTO Top Engine Limit PTO RPM set speed PTO Cab Throttle RPM PTO activates cooling fan Torque Limit Idle PTO vehicle speed limit

New Caterpillar 3126B

9

manuals\throttle\cat\cat3126b.ai..100198

10

Caterpillar 3126B ECM Throttle Interface Module

Class 1

HIGH IDLE POT (10K) Caterpillar Interface C2-A Ground VERNIER CONTROL (10K) 85 86 C2-C +5VDC C1-B C2-B Throt Sig Throtle Position PWM Out C3 Sensor Common (Ground) 3 Input Sensor Common #2 Ground 87 56 PTO On/Off Ground PTO Engaged Relay 87a 30

C4 IdleValidation Override C1-A 12 VDC

68 INPUT #8 RAPS PWM

FAST IDLE Fast Idle Switch

12 VDC PTO Lamp

30 Output #1 PTO On Lamp Ground

OEM Interlocks PTO

DOC 101058C_c:\manuals\throttles\cat\catthrot.p65

Vehaicle Harness Connector ECM Side 13 12 11 10 9 23 31 39 CAT Default Program 47 57 70 69 68 67 66 65 64 63 62 61 60 59 58 8 7 6 5 4 3 2 1 14 24 32 40 48 Off 2120 0 RPM TEL Normal 2000 lb-ft 1 MPH ON 2120 xx TEL Continuous Rated Max CAT J1/P1 Connector ECM RIGHT SIDE

New Caterpillar 3126B

Programming Considerations

3126B HEUI

Parameter

Available

PTO PTO Top Engine Limit PTO RPM set speed PTO Cab Throttle RPM PTO activates cooling fan Torque Limit Idle PTO vehicle speed limit

Remote Throttle 600-2120 Idle-PTO TEL TEL, Idle,PTO TEL Normal, Continuous 200 lb-ft to Rated 1 to 15 MPH

manuals\throttle\cat\3126B-HI.AI....102398

3.625"

3.000"

4.75" 4.25"

Throttle Interface Module

Mounting

Ø 0.201" (4) HOLES

1.0"

DOC 101057C_c:\manuals\throttles\cats\catthrot.p65

11

Operation

When the throttle interface module is powered up by the safety (interlock) system the throttle module will perform a self check and the module will then output a PWM signal of 12 %. The interface will verify that the throttle is fully closed. If the throttle is not fully closed, the interface module will not increase the PWM until the zero position is detected.

IMPORTANT The throttle interface module will not command increased speed from the engine until the zero position is detected. This feature is present to avoid unintentional increases in engine speed should the throttle be left in the open position.

The fast idle input overrides this feature and should be used with caution.

When finished operating the remote throttle, the operator should return the throttle to idle and turn the control to it's full clockwise position. This will insure a zero throttle position. NOTE: The new 3126B and 3116B HEUI engines perform their own idle validation for remote throttle operations. This presents a timing and signal problem that must be overcome to use the interface module for Fast Idle.

For questions or concerns regarding the interface module, call Class1 at 352-629-5020 FAX 352-629-2902

DOC 101058C_c:\manuals\throttles\cat\catthrot.p65

12

Information

Cumthrot

12 pages

Report File (DMCA)

Our content is added by our users. We aim to remove reported files within 1 working day. Please use this link to notify us:

Report this file as copyright or inappropriate

70003


You might also be interested in

BETA
Cumthrot
Cumthrot